Subzero: Fix the link command for Trusty.

With the original link command, -lpthread comes before some other LLVM libraries, and this ends up causing undefined pthreads symbols.  The new link command makes sure the -lpthread part comes last.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/514723004
1 file changed